Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study
| Autor: | Klaas R. Westerterp, Linda Hagfors, Lars Sköldstam, Gunnar Johansson |
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| Přispěvatelé: | Humane Biologie, RS: NUTRIM School of Nutrition and Translational Research in Metabolism |
| Rok vydání: | 2004 |
| Předmět: |
Male
medicine.medical_specialty Mediterranean diet Potassium Sodium Medicine (miscellaneous) chemistry.chemical_element Arthritis Diet Mediterranean Diet Surveys Sensitivity and Specificity Arthritis Rheumatoid Interviews as Topic Body Water Internal medicine medicine Humans Deuterium Oxide Exercise Sweden Nutrition and Dietetics business.industry Potassium Dietary Reproducibility of Results Sodium Dietary Middle Aged medicine.disease Intervention studies humanities Diet Endocrinology chemistry Energy expenditure Rheumatoid arthritis Dietary Proteins business Energy Intake Energy Metabolism Biomarkers |
| Zdroj: | European Journal of Clinical Nutrition, 59(2), 238-245. Nature Publishing Group |
| ISSN: | 0954-3007 |
| Popis: | Validity of reported energy expenditure and reported intake of energy, protein, sodium and potassium in rheumatoid arthritis patients in a dietary intervention study.Hagfors L, Westerterp K, Skoldstam L, Johansson G.Department of Food and Nutrition, Umea University, Umea, Sweden. linda.hagfors@kost.umu.seOBJECTIVES: The aim of the study was to validate a diet history interview (DHI) method and a 3-day activity registration (AR) with biological markers. SUBJECTS AND STUDY DESIGN: The reported dietary intake of 33 rheumatoid arthritis patients (17 patients on a Mediterranean-type diet and 16 patients on a control diet) participating in a dietary intervention study was assessed using the DHI method. The total energy expenditure (TEE), estimated by a 3-day AR, was used to validate the energy intake (EI). For nine subjects the activity registration was also validated by means of the doubly labelled water (DLW) method. The excretion of nitrogen, sodium and potassium in 24-h urine samples was used to validate the intake of protein, sodium and potassium. RESULTS: There was no significant difference between the EI and the TEE estimated by the activity registration or between the intake of protein, sodium and potassium and their respective biological markers. However, in general, the AR underestimated the TEE compared to the DLW method. No significant differences were found between the subjects in the Mediterranean diet group and the control diet group regarding the relationship between the reported intakes and the biological markers. CONCLUSION: The DHI could capture the dietary intake fairly well, and the dietary assessment was not biased by the dietary intervention. The AR showed a bias towards underestimation when compared to the DLW method. This illustrates the importance of valid biological markers. |
| Databáze: | OpenAIRE |
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